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Using X without a Display Manager: Difference between revisions

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imported>Giraffito
m fix inline code references
imported>Giraffito
remove hardcoded package names and include font path generation
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'''''Please note''': this page is presently being rewritten by someone very new to nixOS, so do not use it as an example of best practices. The previous content of this page was 2 years out of date and factually incorrect.''
To run X11 as a regular user, ''without'' <code>services.xserver.enable = true;</code> in configuration.nix, do the following:
To run X11 as a regular user, ''without'' <code>services.xserver.enable = true;</code> in configuration.nix, do the following:


First, '''install packages'''; you need X11 itself, some X11 input modules (e.g. xf86-input-evdev, xf86-input-synaptics, xf86-input-libinput), and possibly video modules as well (xf86-video-intel, xf86-video-ati, xf86-video-nouveau).
First, '''install packages'''; you need X11 itself, some X11 input modules (e.g. xf86-input-evdev, xf86-input-synaptics, xf86-input-libinput), and possibly video modules as well (xf86-video-intel, xf86-video-ati, xf86-video-nouveau).


You probably want to use '''DRI acceleration''' for X; enable it and OpenGL in /etc/nixos/configuration.nix: <code>hardware.opengl.enable = true;</code> and <code>hardware.opengl.driSupport = true;</code>.
You probably want to use '''DRI acceleration''' for X; enable it and OpenGL in configuration.nix: <code>hardware.opengl.enable = true;</code> and <code>hardware.opengl.driSupport = true;</code>.


Then, it's just necessary to '''gather X configuration files''' into one directory and create a config file that also points X at the correct module paths.
Then, it's just necessary to '''gather X configuration files''' into one directory and create a config file that also points X at the correct module paths.


This script does that (though it hard-codes <code>pkgs</code> which should instead be computed from the current configuration):
This script does that (but you will need to add or remove to the <code>pkgs</code> and <code>fontpkgs</code> arrays according to your preferences):
<syntaxhighlight lang="sh">
<syntaxhighlight lang="sh">
#!/bin/sh
#!/bin/sh
#generate unprivileged user xorg.conf for nixOS
#generate unprivileged user xorg.conf for nixOS
#before running:
#    install any desired packages with `nix-env -iA ...`
#    update by running `nix-channel --update` and `nix-env --upgrade --leq`
#TODO: obey XDG guidelines rather than assuming ~/.config
#TODO: obey XDG guidelines rather than assuming ~/.config
mkdir -p ~/.config/xorg.conf.d
mkdir -p ~/.config/xorg.conf.d
cd ~/.config/xorg.conf.d
cd ~/.config/xorg.conf.d
Line 21: Line 22:
shopt -s nullglob
shopt -s nullglob


#TODO: don't hard-code package names!
get_pkg_path() {
attr=$1
nix show-derivation -f '<nixpkgs>' "$attr" | jq -r '.[].env.out'
}
 
#add to this set according to your driver needs
pkgs="
pkgs="
i0r09miwjk8z9wd2261gh3a3mdzln4w4-xf86-input-evdev-2.10.5
xorg.xf86inputevdev
av8542xr7kn44abja120hk3ppd2vp8l8-xf86-video-intel-2017-10-19
xorg.xf86videointel
8vp93ci2lkcg9c5jh7csfz24npjcnhhx-xf86-input-synaptics-1.9.0
xorg.xf86inputsynaptics
660q2zwjrn0cqkjj6cy861pkazs6yrs0-xorg-server-1.19.6
xorg.xorgserver
"
"


echo 'Section "Files"' > 00-nix-module-paths.conf
echo 'Section "Files"' > 00-nix-module-paths.conf
for pkg in $pkgs; do
for pkg in $pkgs; do
for conf in /nix/store/"$pkg"/share/X11/xorg.conf.d/*; do  
pkg_path=$(get_pkg_path $pkg)
for conf in "$pkg_path"/share/X11/xorg.conf.d/*; do  
ln -s "$conf" ./
ln -s "$conf" ./
done
done
echo ' ModulePath "/nix/store/'"$pkg"'/lib/xorg/modules/"' >> 00-nix-module-paths.conf
echo ' ModulePath "'"$pkg_path"'/lib/xorg/modules/"' >> 00-nix-module-paths.conf
done
done
#add to this set according to your font preferences
fontpkgs="
xorg.fontmiscmisc
ucsFonts
"
for pkg in $fontpkgs; do
pkg_path=$(get_pkg_path $pkg)
path="$pkg_path"'/share/fonts/'
[ -d "$path" ] && echo ' FontPath "'"$path"'"' >> 00-nix-module-paths.conf
path="$pkg_path"'/lib/X11/fonts/misc/'
[ -d "$path" ] && echo ' FontPath "'"$path"'"' >> 00-nix-module-paths.conf
done
echo 'EndSection' >> 00-nix-module-paths.conf
echo 'EndSection' >> 00-nix-module-paths.conf
</syntaxhighlight>
</syntaxhighlight>
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